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Science Chapter 5-6
Energy Test
| Question | Answer |
|---|---|
| The law of conservation of energy states that when one form of energy is converted into another... | no energy is destroyed in the process |
| Kinetic energy increases as... | both mass and velocity increase. |
| The amount of energy required to raise the temperature of 1 kilogram of a substance by 1 kelvin is called its... | specific heat. |
| The type of energy stored by fossil fuels such as coal is... | chemical potential energy. |
| A pole-vaulter first converts kinetic energy into.. | elastic potential energy. |
| The process of burning a fuel is called... | combustion. |
| Which of these if a good conductor - wood, paper, silver? | silver |
| The total energy of all the particles in a substance is called... | thermal energy. |
| The expanding of matter when it is heated is known as.. | thermal expansion. |
| Visible light is an example of... | electomagnetic energy. |
| A steam engine is an example of an... | external combustion engine. |
| A measure of the average kinetic energy of the individual particles in an object is called... | temperature. |
| When you rub your hands together on a cold day, you use friction to convert... | mechanical energy into thermal energy. |
| Fossil fuels contain energy that originally came from... | the sun. |
| The transfer of energy by electromagnetic waves is called... | radiation. |
| The rate at which energy is transferred is called... | power. |
| When generators are spun by turbines, they... | produce electricity. |
| Vaporization that takes place only at the surface of a liquid is called... | evaporation. |
| In an internal combustion engine, each up or down movement by a piston is called a... | stroke. |
| What type of energy is released when fossil fuels are burned? | chemical energy |
| Heat is transferred from one particle of matter to another without the movement of matter itself in a process called... | conduction. |
| Water freezes at 32 degrees on which temperature scale? | Fahrenheit |
| When fossil fuels are burned, their chemical potential energy is converted into... | thermal energy. |
| No more energy can be removed from matter at... | absolute zero. |
| Absolute zero is shown as 0 on which scale? | Kelvin |
| Which of these substances has the highest specific heat - glass, sand, water? | water |
| Any temperature on the Kelvin scale can be changed to Celsius degrees by... | subtracting 273 from it. |
| The total potential and kinetic energy of the particles in an object is called... | thermal energy. |
| What type of conversion is taking place when natural gas is used to heat water? | chemical energy into thermal energy |
| The addition or loss of thermal energy changes the arrangement of the particles during... | a change of state |
| The energy associated with motion is called... | kinetic energy |
| The temperature at which a solid changes into a liquid is called... | the melting point. |
| Unlike kinetic energy, potential energy is... | stored |
| Potential energy that depends on height is called... | gravitational potential energy. |
| Heat transfer occurs... | only form warm objects to colder ones. |
| One common application of thermal expansion is... | a thermostat. |
| Which of the following has kinetic energy - a rock poised for a fall; an archer's bow that is drawn back; a rolling bowling ball? | a rolling bowling ball |
| How many different forms, or states, does most matter on Earth exist in? | three |
| Niagara Falls is a good example of... | potential energy being converted into kinetic energy. |
| Heat, like work, is an energy transfer measured in... | joules. |
| The conversion of thermal energy into mechanical energy requires a... | heat engine. |
| The movement of thermal energy from a warmer object to a cooler object is called... | heat. |
| Which statement is true of gases? Gases have a definite volume; Gases have a definite shape; Gases expand to fill all the space available. | Gases expand to fill all the space available. |
| Which of the following is true of the Celsius scale - 212 degrees is the boiling point of water; 0 degrees is absolute zero; 32 degrees is the freezing point of water. | 32 degrees is the freezing point of water. |
| The energy associated with the motion and position of an object is... | mechanical energy |
| Heated air moves from baseboard heaters to the rest of a room in a process called... | convection. |
| What type of energy does a spinning turbine have? | mechanical energy. |
| An example of something that stores chemical energy is... | a match. |
| How would you calculate an object's mechanical energy? | add its kinetic and potential energies. |
| Energy is measured in units called... | joules. |
| The ability to do work is called... | energy. |
| Which of these devices transfers thermal energy from a cool area to a warm area? | refrigerator |
| A material that does NOT conduct heat well is called an... | insulator |
| A change from one form of energy into another is called... | an energy transformation. |
| The scientist who suggested that energy can be created under certain conditions was... | Einstein |
| An example of a fossil fuel is... | petroleum. |
| A refrigerator requires... | a refrigerant. |
| The more particles a substance has at a given temperature, | the more thermal energy it has. |
| Moving water can be used to produce electricity because... | most forms of energy can be converted into other forms. |
| Energy stored in the nucleus of an atom is called... | nuclear energy |
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8thgraders